XML 103 R86.htm IDEA: XBRL DOCUMENT v3.22.0.1
Capitalized Servicing Assets - Economic Assumptions Used to Determine Fair Value of Capitalized Servicing Rights and Sensitivity of Value to Changes in Assumptions (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Residential Mortgage Loans [Member]      
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]      
Weighted-average prepayment speeds     12.92%
Impact on fair value of 10% adverse change $ (13,587)   $ (13,587)
Impact on fair value of 20% adverse change $ (26,047)   $ (26,047)
Weighted-average OAS 8.94%   8.94%
Impact on fair value of 10% adverse change $ (7,621)   $ (7,621)
Impact on fair value of 20% adverse change $ (14,786)   $ (14,786)
Weighted-average discount rate 9.80% 9.40%  
Commercial Mortgage Loans [Member]      
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]      
Weighted-average discount rate 18.00% 18.00% 18.00%
Impact on fair value of 10% adverse change $ (6,892)   $ (6,892)
Impact on fair value of 20% adverse change $ (13,306)   $ (13,306)